Typewriting machine



C. E. SMITH TYPEWRITING MACHINE 3l Sheets-Sheet 1 Filed Feb. 19, 1923 NVENTR /fwvlu 5J/,Mit

@jm 5u HIE ATTHNEY Feb. 12, 1924."

C. E. SMITH TYPEwRxTING MACHINE s sheets-'sheet 2 Filed Feb. 19, 1923 INVENTEIR ai@ Miz- @MM l`: u i -Q [v ,a mm mmm m I WITNEEEEE V/.Ww M- 5M HE ATTDRNEY Y Feb, 12, w24.;

c. E. SMITH TYPEWRITING MACHINE .5 Sheets-Sheet 3 Filed Feb. 19, 1925 MENTE@ l HE ATTRNEY WITNEEEEE 2,7%. Wim, n@

Patented Feb. 12, 1924.

#l s'ATEs `.buteur OFFICE.

CHARLES E. SMITH, OF iBROOKLYN, NEW` YORK, ASSIGNOR T0 REMINGTON TYPE- WRITER COMPANY, OF ILION, NEW YORK, A CORPORATION OF NEW YORK.

TYPEWRITING MACHINE lApplication filed February 19, 1923. Serial No. 619,827.

To all whom t may concern.'

Be it known that I, CHARLES E. SMITH, citizen of the United States, and resident of the borough of Brooklyn, city of New York, in the county of Kings and Statel of New York, have invented certain new and useful Improvements in Typewriting Machines, of which the following is a specification.

My invention relates to typewriting or like machines, and more particularly to machines of the so-called portable class adapted to be inclosed within a carrying case for transportation.

The main object of the invention, generally stated, is to insure aproper conditioning of a portable machine for transportation.

Stated more specifically the 'main object is to provide simple and efficient means for compelling a proper conditioning of the machine for transportation before it can be inclosed within its carrying case, and not leave it to the judgment or memory of the operator to see that the machine is thus con ditioned before being inclosed.

Even more specifically stated, the main objects ofthe yinvention are to provide improved automatically operating means that are actuated before the machine can be inclosed in its carrying case for (1st)` releasing the case shift lock ifthe case shift frame should belocked in its shifted position, and thereafter maintaining said lock ineffective; (2nd) actuating a lock to prevent the case shift frame from being shifted from itsnormal position; (3rd) releasing the carriage from restraint of its escapement mechanism, and for maintaining the carriage thus released; and (4th) rendering effective a lock that locks the carriage centered in its line of travel. y

In the present embodimentof my, invention-all of these' parts are automatically actuated by the act of moving a 'compactible part of the machine, in thepresent instance the type bars, to and from compact position.

To fthe above and other ends which will hereinafter appear, my invention consists in the features 0f construction, arrangements of parts and combinations of devices set forth in the following description and particularly pointed out in the appended claims.

In the accompanying drawings, wherein like reference characters indicate corresponding parts in the different views, y

Figure 1 is a fore and aft vertical sectional view of a machine conditioned for transpor-` tation and inclosed within its carrying case.

Figure 2 is a like view of the machine with parts broken away and showing the cover removed and the machine in condition for use.

'Figure 3 is a detailfragmentary perspective view showing the various devices of my invention and the manner in which they coact with their associated parts.

Figure 4 is an enlarged detail fragmentary bottom plan showing the connections for releasing the carriage from restraint of its escapement mechanism.

Figure 5 is a like view showing portions of the same construct-ion as they appear when the case shift frame has been shifted.

Figure 6 is a. detail fragmentary top plan view of the lock and associated parts at one side of the machine for locking the case shift frame against movement from normal position; the view showing the case shift frame locked.

From certain aspects the present invention is .in the nature of improvements on constructions disclosed in my previouslyiled applications: Sr. No. 538,247 filed Feb. 21 1922; si. N0. 550,045 inea Apr. e, i922; and Sr. No. 611,922 filed Jan. 11, 1923; the claims of the present application being restricted to features not disclosed in said previously filed applications.

I have shown my invention embodied in the present instance in a Remington portable machine, but have illustrated only so much of said machine as is necessary to arrive at an understanding of my invention in its embodiment therein. Features added by the present invention have been'designed with a view to their ready incorporation in said machine without modifying, or materially modifying, the structural features thereof except by the elimination of certain parts now employed and the addition of devices of the present invention. Itshould be understood, however, that the invention is not restricted to embodiment in such machine, but may be employed generally wherever found available in typewriting or like machines.

In the Remington portable machine the various working parts are mounted on an inner sheet metal frame 1 surrounded by an outer sheet metal frame 2 and a top plate 3. Among suc-h working parts is a carriage supporting case shift frame constructed and actuated as disclosed in the patent to Bridgewater, No. 1,442,792 dated Jan. 23, 1923. This case shift frame comprises a carriage support 4 pivoted at 5 on upright arms 6 secured to a rock shaft 7 pivoted at its ends to the inner frame 1, so that the carriage support may receive a case shifting movement fore and aft of the machine. The carriage support 4 is secured by screws 8 to inwardly extending horizontally disposed ianges 9 formed on forwardly extending side plates 10 of t-he shift frame. The forward end of each side plate 10 is pivoted at 11 to a depending link 12 mounted to turn on a stud 13 that projects inwardly from a side plate of the inner frame 1. Stops 14 and 15 co-act to llimit the shifting movements of the caseshift frame under control of its case shift devices to be presently described.

The carriage support 4 has two grooved guide rails 16 and 17 secured thereto. These guide rails receive crossed bearing rollers 18 that also are received in companion grooved guide rails or ways 19 and 2O formed in the bent edge portions of the main base plate 21 of the carriage. This plate has fixed thereto carriage end plates 22 which support a platen 23. The carriage is thus mounted to travel endwise over the carriage support and to receive a case shifting movement therewith, and maintains the platen at all times in printing position Where it is adapted to receive the impact of downwardly and rearwardly striking t-ype bars 24 on the upper side thereof.

The means employed in the present instance for shifting the case shift frame are similar to those disclosed in the above mentioned Bridgewater patent, and such as are used in the Remington portable machine as it is now manufactured. Such shifting means comprises a link 25 that extends fore and aft of the machine about midway between the sides thereof. This link is pivoted at its rear end to a bracket arm 26 secured to the carriage support 4. The forv-:ard end of the link is pivoted at 27 to an upwardly projecting crank arm 28 on a rock shaft 29. This shaft extends from side to .side of the machine and is mounted at its ends in bearing openings in the side plates of the inner frame 1. Extending upwardly and rearwardly from rock shaft 29 at the left-hand end portion thereof is a crank arm 30 provided with a laterally extending headed pin 31 on which a roller 32 is mounted. A case shift key lever 33 is fulcrumed on a pivot wire 34 carried by a fixed part of the machine and is provided with a key-35 at its forward end. The lever 33 extends through a guide .slot in a comb plate 36 secured to the inner frame 2, said lever being returned to normal position by a springv 37. A lower edge of a depending projection shown) is ordinarily employed at thc opposite side of the machine to coact with a crank arm like the arm 30 to shift the parts as described from the opposite side of the machine.

An angular case shift lock lever 39 is pivoted at 4() on the shift lever 33 and carries a key 4l on one arm and a hook-like engaging portion 42 on the other arm. A laterally bent lug 43 on the locking lever coacts with the bottom edge of the lever 33 to limit the return mot-ion of the lever 39 on the lever 33'. A spring 44 which returns the lever 39 around the pivot 40 to the normal position shown in the drawings, is connected at one end to the lever 39, and at its other end to the lever 33. A locking plate-45 is secured to the front face of the comb plate 36 by Screws 46, 47 and 48, the latter being an adjusting screw. The locking plate is in the plane of movement of the lever 39 so that a depression of the shift'lock key 41 is efl'ectiveto first turn the lever 39 on its pivot 40 and bring the engaging end of said lever against the front face of the locking plate. At this time the lever 39 can turn no further and the pressure exerted on the key 41 carries the levers 39 and 33 down together to effect a shift of the carriage as previously described. When the shift is completed the hook-like engaging portion 42 of the locking lever will snap beneath the lower edge of the locking plate and lock the parts against return movement. Ordinarily the release of the lock is effected by a depression of the shift key 35, or the corresponding key at the opposite side of the machine. This relieves the restraining force which holds the lever 39 locked and enables its spring 44 to return it to normal position around its pivot 40, withdrawing the engaging member 42 and enabling all of the parts to return to normal position when the operator releases pressure on the depressed shift key 35.

The carriage is controlled in its step-bystep feed by the usual escapement mechanism which includes a feed rack 49. This rack is secured to a sheet metal plate 50 pivoted at 51 to brackets secured to the carriage bed plate 2l and spring pressed forward to engaging position in the usual manner. A carriage release key 52 is secured to the sheet metal plate 50 and forward pressure exerted on thekey is effective to move the feed rack rearwardly and disengage it from the normally engaged stepping dog 53.

Referring more particularly to Fig. 4, it will be seen that the dog 53 is formed as a part of a member or carrier 54 pivoted at 55 on a second member or carrier 56 which is pivotally mounted at 57 on a dog rocker. The dog rocker comprises two sheet metal plates 59 and 60 maintained spaced apart by suitable spacing sleeves, one of which is indicated at 61. .The two plates 59and 60 are secured together by screws 62 and 63. rl`he dog rocker is pivoted at 64 on ears 65 to a bracket 66 secured to the bottom of the carriage supporting member 4 of the shift frame. The f dog rocker is thus mounted to be vibrated at each actuation of the space key or a printing key, `as will hereinafter more clearly appear. The carrier 54 for the stepping dog has` an opening 67 therein through which a stop pin 68 on the member 56 projects to limit the movement of the carrier 54 around its pivot 55, and limit the corresponding stepping movement of the stepping dog53. A contractile spring 69 is connected at one end tothe carrier 54 and at its oppositeend to a. pin 70 projecting from the plate 59 of the dog `rocker. The force of this spring is exerted to advance the stepping` dog 53y when it is released from the vfeed rack on the movement of the dog rocker durin the depression of a printing key or t e space key. In addition to the stepping dog, the dog rocker carries a holding dog 71 (see Fig. 3) riveted at 72 to the member 56. The body portion of the plate on which the dog 71 is formed is mounted to turn on the pivot screw 57 i and constitutes the connection by which the member 56 is adapted to turn on said pivot 57, as previously pointed out. From an inspection of Fig. 4 it will be seen that the spring 69 not only tends to advance the stepping dog as previously pointed out, but also exerts its force to turn the member 56 on its pivot 57 and maintain it in the full line position in this figure, where the stepping dog 'is held in co-operative relation with the teeth of the feed rack 49. The member 56 is limited in its pivotal movement in this direction by a stop arm 73 thereon coacting with one of the ears 74 on the plate 60 of the dog rocker. The pivotal mounting of the carrier 5.6 on the dog rocker, as described, is 'employed in the Remington portable machine to enable the normally engaged stepping dog 53 to be cammed out of engagement with the teeth of the feed rack and click thereover as the carriage is returned to the right, or in the direction of the arrow as the parts appear in Fig. 4. However, by my present invention I make this construction'available' for another purpose, as! will hereinafter appear.

An actuation of the dog rocker is brought about in the following manner:

The plate 59 of the dog rocker is provided With a forwardly extending actuating arm 75 formed with `a laterally projecting lug 76. The forward end of this arm is pivotvally connected by a cotter pin 77 with an up- Wardly extending link 78 which in turn is pivoted at its opposite end, as at 7 9, to an actuating arm 80. The arm 80 forms part of an independent train of connections to the space key for actuating the dog rocker therefrom, and which it is unnecessary for the purposes of the present invention to disclose further in detail. Extending beneath the lug 76 on the dog rocker arm 75 is a laterally extending projection 81 on an 'actuating arm 82 fixedly secured to and projecting rearwardly from a cross bar 83 of a sheet metal universal bar frame. The arm 82 is extended forwardly beyond the cross bar 83 and is connected by spot welding, or otherwise, at 84 to a` universal bar 85 that forms part of` the universal bar frame. Referring particularly to Figs. 1 and' 6, it will be seen that the side supporting arms 86 of this frame are pivoted at 87 to the side plates 10 of the shift frame, to enable the universal bar Vframe to pivot thereon but compel the two frames to shift together at case shifting operations. From an inspection of Fig. 1 it will be understood that each printing key lever 88 is provided with a downwardly extending projection 89 that coacts with the universal bar`85. Motion is transmitted from each lever 88 through the luniversal bar, the frame of whichit forms a part, and the train of connections described, to actuate the dog rocker.

The printing instrumentalities will now be described, reference at this time being had more particularly to Fig. 1. The print ing key levers 881are fulcrumed on the pivot wire 34 and extend through guide slots in the comb plate 36. Each key lever 88 is connected to an upwardly extending link 90 pivoted at its upper end to a sub-lever 91 fulcrumed on the comb plate 36. Each sublever is connected through a link 92 with a second sub-lever 93 fulcrumed at 94 on a suitable fixed support, not shown. The rear end of each sub-lever carries a segmental rack 95, the teeth of which are adapted to mesh with segmentally arranged teeth 96 on the heel of the associated type bar 24. The ,type bar turns on a pivot wire 97 carried by a fixed segment, not shown.

Arranged beneath the type bars is a segmental pad 98 carried by a vertically shiftable frame 99. This frame at its sides carries vertically disposed guide plates 100 that lare received in ways in vertically disposed guides 101 carried by a fixed part ofthe machine. Means are provided whereby the i wi (rig. a).

frame 99 may be shifted from the lowermost position shown in Fig. l, where the type bars are contracted in a compact ineffective position, to the elevated Fig. 2 position where the type bars are expanded and in condition for use.

The means in question for expanding the type bars comprise a rock shaft 102 having an off-set or eccentrically disposed part 103.

'= This shaft is mounted at its ends in bearing openings in the side plates of the inner frame 1. lThe right-hand end of this shaft extends beyond the frame of the machine where it has secured thereto a crank arm The free end of this crank arm carries a finger piece 105 movable axlally on the arm and carrying'a locking member or pin that engages in either one of two locking openings 106 or 107 in the frame 1, depending on the position of the arm at the limit of its movement forward or backward with the rock shaft. An interlocking of the pin carried `by the finger piece 105 within either of the openings 10G or 107 locks the rock shaft and the parts controlled thereby against movement. This rock shaft carries two crank arms 108 near the sides of the machine, and each arm is pivoted at 109 to a link 110 which in turn is pivoted at 111 to the frame 99 that controls the expansion and contraction of the type bars. In Fig. 3 I have omitted the arm at the left-hand side of the machine to avoid confusing the showing. By turning the crank arm 104: to the position shown in Fig.`

3,' the rock shaft 102 is rocked from the Fig. 1 to the Fig. 2 position. This results in elevating the frame 99 and turning the type -bars around their pivot 97 from the contraeted or compact Fig. 1 position, where they are supported on a fixed type rest 112, tothe expanded Fig. 2 position where they are in'condition for use.l Reversing the movement of the arm 104 reverses the movements of the type bars around their pivot 97, and com acts the type bars preliminary to inelosing ghe machine within its carrying case.

The carrying case for the Remington portable machine comprises a baseboard 113 to which the machine is secured, and a detachable cover having side walls 114, a rear wall 115 and a top wall 116. This cover closely fits over the machine when it is properly conditioned for transportation, but when the type bars are in the expanded position for use they prevent the cover from being placed in position to inclose the machine. The rear wall 115 of the cover is provided with contacts or rubber blocks 117 so located that when the carriage is centered and the machine otherwise properly conditioned for transportation, each of said blocks 117 will contact with an end plate 22 of the carriage and hold the same against case shifting movement from normal position. It will be understood, however, that should the operator through oversight leave the case shift lock key l1 depressed, this will lock the carriage back in its shifted position and prevent the cover from being closed. An attempt to force the cover closed at this time might result in injury to the machine or the cover or both.

The construction as thus far described is the same,- or essentially the same, as the Remington portable machine as it is now manufactured. I have found it necessary, however, to describe various parts of this machine with considerable detail in order that a clear understanding of the co-operation therewith of various devices of my invention in combination therewith may be arrived at.

By my present invention, I have provided means whereby the act 0f collapsing the type bars, or moving them to the compact position preparatory to inclos-ing the machine in its carrying case, is effective to release the case shift locking lever 39 if the operator should inadvertently leave it locked, and for thereafter rendering the locking means ineffective to hold the carriage in its shifted position.' This overcomes the possibility 0f injuring the machine as pointed out above.

In the present instance the lock releasing mechanism referred to comprises an endwise movable link or rod 118 preferably comprising two parts united by a turn buckle 119. The rear end of this rod is pivoted at 120 to an upwardly projecting` crank arm 121 on the rock shaft 102 and located near the left-hand end thereof. The forward end portion of the link 118 is flattened at 122 where it'passes through a correspondingly shaped guide opening 123 in a supporting bracket 124. This bracket may be secured to the frame of the machine by the screw 48 and a coaeting nut 48a. The forward end portion of the link. is thus supported and guided and the link is prevented from turning or skewing. The link has a lateral bend in its forward end portion to clear the rock shaft 29, whereas the rear end portion is bent laterally to clear other parts of the machine, not shown. The forward end of the link is bent at right angles to form an engaging or contact portion 123 that extends beneath the comb plate 36 and crosses the plane of movement of the locking lever 39. The construction and relation of the parts are such that when the type bars are maintained in the expanded position for use, with the rock shaft 102 in the Fig. 2 position, then the contact 125 on the link 118 will have been'withdrawn rearwardly and maintained in the ineffective position where it will not interfere with the engaging end of the locking lever engaging the lockingv plate 45 when the shift lock'key 41 is depressed. However, the act of turning the shaft 102 to collapse the type bars is effective to shift the link 118 forward. bringing the contact 125 thereon to the Fig. 1 position. If the case shift locking lever 39. should be locked at this time the Contact 125 will coact with the part 42 thereof to free it from engagement with the locking plate 45. The contact 125 being maintained in the Fig. l position will prevent the locking lever from re-engaging beneath the lower edge of the locking plate should the operator depress the shift lock key after the type bars have been collapsed, and such re-engagement cannot be effected until the type bars are again expanded and the machine is in condition for use.

In my hereinbefore mentioned application, Sr. No. 538,267, I have included generic claims which cover this feature of the present construction; claims herein directed to this' feature being specific to the present construction or to such releasing means in combination with other features ynot disclosed in said previously filed application.

In addition to the case shift release hereinbefore described, I prefer to employ locking means for preventing the case shift frame from'being shifted from normal position; said locking means being automatically thrown in action or rendered effective by the vact of moving the expansible part,

in kthe present instance the type bars, to contracted position. lSuch means in the present instance comprises two hook-like locking arms 126 secured to the rock shaft 102. The act of rocking the' shaft to move the type bars from the Fig. 2 to the Fig. 1 position is effective to move these arms up back of and in engagement with the. parts 127 of the cross bar 83 of the universal bar frame, as shown in Fig. 6. The arms 126 are brought to the position shown in this figure at the termination of the said movement of said rock shaft. The shaft 102 being locked in the mar-ner described at the end ofits movement will prevent a movement of the rock shaft, and the arms 126 thereon will prevent a rearward movement of the universal bar, and through its connection with the shift frame will prevent a shifting of the latter from its normal position. lVhen the shaft 102 is turned in the opposite direction to expand the type bars the arms 126 will be moved rearwardly and down out of thepath of the parts 127 of the universal bar frame, and the shift frame is free to be shifted. The parts are so timed that should the case shift lock lever 39 be locked an opportunity is given the shift frame and the universal bar frame carried thereby to return to normal position before the arms 126 reach the locking position. An adjustment of the turn buckle 119 may aid in securing a proper relative timing ofthe Earts. Also if desired the arms a126 may carrying case it is desirable to maintain the carriage from restraint Aof its escapement mechanism in order that the shocks and jars to which the machine is subjected may not be exerted through the carriage against the escapement device, and more particularly against the normally engaged feed dog 53. In order to overcome this difficulty I have provided means for automatically releasing the carriage from restraint of its escapement mechanism by the act of collapsing the type bars. Thus, the eccentric or off-set portion 103 of the shaft 102 has a circumferential groove 128 that forms a bearingfor the forward end of a link 129. The rear end of this link is pivoted at 130 to a lever 131 that extends transversely of the machine and is fulcrumed intermediate vits ends on a pivot screw 132. Said screw engages a depending stud 133 on a bracket 134 secured to the bottom of the carriagesupport 4. The inner free end of the lever 131 carries an upwardly extending pin 135 adapted to coact with the arm 73 of the carrier 56.0n the dog rocker. The construction and arrangement of the parts are such lthat when the machine is in condition for use, with the rock shaft in the position shown in Figs. 2 and 3 and as indicated in the full lines in Fig. 4, the lever 131 will hold the pin 135 thereon out of co-operative relation with the arm 7 3 and will not interfere with the escapement operating in its usual manner. If at this time a case shift operation should take place, the carriage support 4 with the parts carried thereby will be shifted rearwardly to the position shown inFig. 5. rIhis will result in turning the lever 131 from the full line position indicated in Fig. 4, to the position shown in Fig. 5. This movement of the lever 131 carries the pin 135 thereon away from f the arm 73 and does not affect the escapement mechanism. When the case shifted parts return to normal position the lever 131 will again assume the full line Fig. 4 position. When, however, the shaft 102 is turned to collapse the type bars, the part 103 of the shaft shifts from the full to the dotted line position shown in Fig. 4. This results in moving the link 129 and the parts controlled thereby to the dotted line positions in said figure, and disengaging the normally engaged stepping dog 53 from the feed rack 49, frees the carriage from restraint of its escapement mechanism. The carriage is thus maintained freed so long as the type bars remain collapsed. The act of moving the type bars to expanded positiony is effective to restore the link 129 and the parts controlled thereby to the full line position shown in j shaft 102 is turned as above described to contract the type bars and release the carria e, as will now be described. f

he left-hand end plate 22 of the carriage has an engaging or locking member 137 mounted to turn on the usual shouldered nut 138 held in position on a screw 139. This locking member has a locking projection 140 which extends down through a slot 141 in the carriage plate or bed. 21. A suitable sprin 142 bears down at its free end on the locgking member 137 and normally holds it in the position shown, with its engaging projection extending below the under surface of thecarriage bed 21. A second co-operative locking member, designated as a whole by the reference numeral 143, is mounted on the under side of the carriage support. This member 143 is formed from sheet metal and is pivoted at one end, at 144, to a bracket 145 secured to the bottom of the carriage support 4. The outer free end of the locking member 143 is formed with an upwardly bent portion 146 that extends into a slot 147 in the carriage support 4, and is adapted to be projected above the upper surface thereof` as shown in Fig.. 1. The upper edge of the projection 146 is beveled in opposite directions as indicated at 148 on opposite sides of a slot or recess 149. A depending projection or contact 150 on the locking mem# ber 143 rests-on a controlling member which controls the movement of the locking member into and out of effective position. In the present instance this controlling member'fis in the natureof a slide comprising two members 151 and 152of a two-part link preferably connected by afturn buckle 153. The flat part 151 of said member is received .in a correspondingly shaped `q-uide opening f part 1.51 is formed. with an inclined. ietf? 0J.

cam 155, the lower surface 156 constituting a dwell at the low point of the cam and the upper surface 157 constituting a dwell at the high point of the cam. The forward end of the part 152 is pivoted, at 158 to a crank arm 159 fixed on the rock shaft 102. When this rock shaft is in the position shown in Figs. 2 and 3, with the type bars extended and the machine in condition for use, the depending projection 150 rests on the dwell 156 of the controlling member. The locking member 143 being thus supported by the controlling member and held on the latter by gravity, aided if desired by a light spring, will slide along the surface 156 in the case shifting movement of the carriage. At this time the extension 146 is maintained down out of the path of the projection 140 on the companion locking member, and the center lock is maintained ineffective., A shifting of the shaft 102 to the Fig. 1 position, to collapse the type bars and otherwise condition the machine for transportation, is effective to shift the controlling member 151-152 endwise and forwardly7 from the position shown in Figs. 2 and 3, to theposition shown in Fig. 1. The result of this is to bring the inclined face 155 of the cam against the projection 150 and elevate the locking members 143 to the position shown in Fig. 1. At the termination of this movement of the controlling member the projection 150 will rest on the dwell 157 and hold-the locking member 143 in its elevated position until the shaft 102 is shifted in t-he opposite direction to expand the type bars and place the machine in condition for use. The elevation of the locking member 143 in the manner pointed out brings the projection 146 thereon into the path of the projection 140 on the companion locking member. The carriage being freed from control of its escapement mechanism at this time will travel in thel direction of its feed, and if to the right of a centered .position in its line of travel, will bring the members of the center lock into co-operation when the centered position is reached. Thus as the carriage travels to the left the projection 140 will reach an inclined face 148 causing the member 137 to be turned on its pivot 138 against the force of its spring 142. As the carriage reaches the centered position the projection 140 will register with the slot, notch or recess 149 and will be snapped into the same by the spring 142, thus effecting an interlocking engagementbetween the two locking members which prevents a movement of the carriage in both directions. Should the projection 140 be to the left of the projection 146 when the carriage is released, then the carriage will move the entire length of its travel to the left and will be returned to the right by hand. When the carriage reaches the, centered posit-ion in this return movement, the

trolling member ll-152.

It will be understood of course that a turning of the shaft 102 from the Fig. 1 position to the positions indicated in Figs. 2 and 3 moves the controlling member 151- 152 rearwardly enabling the locking member 143 to drop to its lowe-rmost position and be disconnected from the companion locking vmember 137.

From the foregoing description it will be understood that a single rocking movement of the member or shaft 102 from the. position shown in Figs. 2 and 8, to that shown in Fig. 1, and which moves the compactible part or type bars to compact position, is also effective to automatically bring about the following results:

. (a) The release of the case shift locking member 39 if it be in the locked position, and thereafter maintaining it ineffective until the machine is again conditioned for use.

(b) The movement of the locking members 126 into engagement with the universal bar frame to prevent a movement of the case shift frame from normal position until the machine is aga-in conditioned for use.

(c) The release of the carriage from restraint of its escapement mechanism and maintaining it thus released until the carriage is again'conditioned for use.

(d) The rendering effective of the carriag'e center lock and maintaining it effective until the machine is again conditioned for use.

A movement of the rock shaft 102 in the opposite direction, aside from expanding the type bars, reverses the operation of the various parts controlled thereby and condi-` tions the machine for use without further manipulation thereof.

There is nothing for the operator to do or remember in`using the present construction exceptto shift the finger piece 105 in one di- `rection tol order the collapse of the type bars, which she knows must be done in order that the carrying case may beclosed to inclose the machine; or to shift the finger piece-105 in the other direc-tion to expand the type bars before she can place the ma` chine in condition for use. All of the other operations required for conditioning the machine for transportation or for use are incidental to the expansion and contraction of the type. 'bars and thus are automatic-ally effected.

By locking the case shift frame against movement from its normal position when it is conditioned for transportation there is,

aside from the advantages `hereinbefore pointed out, an assurance that different feat ures of the construction will not be interfered with by such shifting of the frame.

For example, in the -constructiomlas shown, if the operator were free to shift the carriage after the machineis conditioned for 1nclosure in its case, then a rearward movement of the contact 150 from the Fig. 1 position would take place. 'This movement would carry said contact 150 rearwardly off the high dwell 157 on the controlling member, and disable the machine. However, this is prevented by the use of the locking members 126. v I have described with considerable detail various features of my invention in their embodiment in a Remington portable machine in which they may be readily embodied Without material modification of the structural features of said machine. It should be understood, however, that not only is the invention not restricted to embodiment in that machine, but that various changes may be made in the construction and certain features may be used without others without departing from my invention as it is defined in the accompanying claims.

What I claim as new and desire to secure by Letters Patent is 1. The combination with a typewriting or like machine having a part movable from compact position to an expanded position lfor use and case shifting mechanism including a case shift frame, of a lock for locking the case shift frame against case shifting movement from its normal position, and means controlled by the movement of said comp'actible part to compact position for rendering said lock effective.

2. In a typewriting or like machine, the combination of a parto-f the-machine movable from a compact position to an expanded position for use, a hand controlled rocking member rocked in one direction to move said movable part to expanded position and rocked in the other direction to move it to compact position, a center lock for locking the carriage against movement in both directions from a centered position inits line of travel, `and means controlled by said rocking member for rendering the center lock effective or ineffective depending on the direction in which said member is rocked.

3. In a typewriting or like machine, the combination of a carriage, escapement mechanism therefor, a lock for locking the carriage centered'in its line of travel, a hand actuated rock shaft on the frame of the machine and extending across the same, means 4. In a typewriting or like machine, the combination of a carriage, a platen carried thereby, a case shift mechanism for effecting a case shift movement of the platen from its normal position and for locking it in its shifted position, means for locking the platen against case shift-ing movement from its normal position, a linger piece, and means controlled thereby for releasing the case shift if it be locked and for throwing into operation the means for locking the platen against case shifting movement from normal position.

5. The combination with a typevvriting or like machine having a part movable from compact position to an expanded position for use and case shifting mechanism including a case shift frame, of a lock for locking the case slhiftl frame against case shifting movement from its normal position, and means controlled by the movement of said compactible part to compact position for rendering said lock effective, the lock being rendered ineffective by the movement of said compactible part to expanded position.

6. In a typewriting or like machine, the combination of a part of the machine movable from a compact position to an expanded position for use, a hand controlled rocking member rocked in one direction to move said movable part to expanded position and rocked in the other direct-ion to move it to compact position, a center lock for locking the carriage against movement in both directions from a centered posit-ion in its line of travel, means controlled by said rocking'member in its movement to co-mpact the compactible part for rendering said center lock effective, and means controlled by this last mentioned movement of the rocking member to free the carriage from restraint of its escapement mechanism.

7. In a typevvriting or like machine, the combination of a carriage, a center lock for locking the carriage centered in its line of travel, a case shift frame, a case shift lock for locking said frame in its shifted position, a hand actuated rock shaft on the frame of the machine, and means controlled thereby for releasing said case shift lock and for rendering said center lock effective.

8. In a typewriting or like machine;.\the combination of a part movable from a compact position to an expanded position for use, a case shift frame, a case shift locking member for locking the case shift frame in its shifted position, a secondv case shift locking member for locking the case shift frame against movement from its normal position, and means controlled by' the movement of said compactible part to compact position fo-r releasing said first mentioned locking member if it be locked and -for rendering said second locking member effective.

9. In a typewriting or like machine, the combination of a part of the machine movable from a compact position toan expanded position for use, a hand controlled rocking member rocked in one direction to move said movable part to expanded position and rocked in theother direction to move it to compact position, and meansl controlled by said rocking member for freeing the carriage from the restraint of its escapement mechanism when said rocking member is moved to compact said compactible parte.

10. In a typewriting or like machine, the combination of a carriage, escapement mechanism therefor, a center lock for locking the carriage centered in its line of travel, a case shift frame, a case shift lock for lockin the case shift frame against movement rom its normal position, a rock shaft, and means controlled thereby for rendering the center lock eective, for freeing the carriage from restraint of its escapement mechanism and for controlling said case shift lock to prevent a case shifting movement of the case shift frame from normal position.

11. In a typewriting or like machine, the combination of a carriage, a platen carried thereby, a. case shift mechanism for effecting a case shift movement of the platen from its normal position and for locking it in its shifted position, a lock for locking the carriage in a centered position in its line of travel, means for locking the platen against case shifting movement from its normal position, a finger piece, means controlled thereby for releasing the case shift if it be locked and for throwing into operation the means for locking the platen against case shifting movement vfrom normal position, and means also controlled by said linger piece for rendering said center lock effective.

12. In a typewriting or like machine, the combination 0f a carriage, a case shift frame, means for locking the case shift frame in its shifted position, a second means for locking. the case shift frame against movement from its normal position, and means fol` compelling the operator to render the first mentioned locking means ineffective and the second locking means effective before the machine can be inclosed in its carrying case.

shift frame against movement from its normal position, a rock shaft, and means controlled thereby for rendering the center lock effective, for freeing the carriage from restraint of its escapement mechanism, for rendering said first mentioned case shift lock ineffective, and for controlling said second case shift lock to prevent a case shiftingmovement of the case shift frame from normal position.

15. In a typewriting or likemachine, the combination of a platen, means for eifectin a case shift movement of the platen, a loc for locking the platen against case shifting movement from itsgnormal position, a part of the machine that is adapted to be moved from an expanded position for use to a more compact position, and means controlled by the movement of said part to compact position for rendering said lock effective to prevent a case shifting of the platen from normal position.

16. In a typewriting or like machine, the combination of a case shift frame; a case shift lock for locking said frame in its case shifted position; a center lock for locking the carriage in centered position in its line of travel; a part of the machine movable from a compact position to an expanded position for use; a hand actuated device for controlling the movement of said compactible part to and from compact position;'and

means controlled by said hand actuated device for freeing said case shift lock, vfor. rendering the center lock effective, and for freeing the carriage from restraint of im escapement mechanism.

17. In a typewriting or like machine, the combination of a series of type bars movable into and out of contracted relationship, a carriage, a center lock for locking the carriage centered in its line of travel, al member for controlling the movements of the type bars into and out of contracted relationship, and ymeans controlled by said member for controlling said center lock.

18. In a typewriting or like machine, the combination of collapsible type bars, a

platen mounted for case shiftingV movement,

normal position,l and means for renderingv said last mentioned means eifectivewhen the type bars are collapsed.

19. ln a typewriting orlike machine, the combination of a case shift frame; a case shift lock for locking said frame in its case shifted position; a center lock for locking the carriage in centered position yin its line of travel; a part of the machine mova-ble from a compact position to an expanded position vfor use; .a hand actuated device for controlling the movement of said compactible part to and from compact position; and `means controlled by the movement of said hand actuated device to compact said compactible part for freeing said` case shift lock and rendering it ineective,

for rendering the center lock effective and for freeing the carriage from restraint of its escapement mechanism, a movement of said hand actuated device to expand the compactible partrendering the case shift lock effective, rendering the center lock ineffective and restraining the carriage by its escapement mechanism. n

20. In a typewriting or like machine, the combination of a series of type bars movable intoY a-nd out of contracted relationship, a carriage, esca'pement mechanism therefor, a center lock for locking the carriage centered in its line of travel, a member for oontrolling the movements of the type bars into and out of contracted relationship, and means controlled by said member for rendering said center lock effective and for freeing the carriage from restraint of its escapement mechanism.

21. In a typewriting or like machine, the

combination of a carriage; escapement mechy anism therefor; a plat-en carried by the carriage; means for effecting a case shift movement of the platen; a case shift lock for locking the platen against case shifting movement vfrom its normal position; a' part -of the machine movable from an expanded position for use to a compact position, and means controlled by the movement of said part to compact position for rendering said center lock effective, for freeing the car'- riage from restraint of its escapement mechanism and for rendering said shift lock effective to prevent a shift-ing of the platen from its' normal position.

22. In a typewriting or like machine, the combination of a carriage, esca ement mechanism therefor, a case shift rame, a case shift lock for locking the case shift frame in its shifted position, a part of the machine movable from a compact position to an e'xpanded position for use, and means controlled by the movement of said compactible part to compact position for releasing said case shift lock and for freeing the carriage into and out of contracted relationship, av

carriage, escapement mechanism therefor,a

l case shift frame, a lock for locking said frame in its case shifted position, a member for controlling the movements of the type bars intol and out of contracted relationthe carriage from restraint of its escapement mec anism and Afor rendering said shift lock effective to prevent a shifting of the platen from its normal position.

25. In a typewriting or like machine, the combination of a carriage; escapement mechanism therefor; a case shift frame; a case shift lock for locking the case shift frame in its shifted position; a' center lock for locking' the carriage in centered position in its line of travel; a part of themachine movable from a compact position to an expanded position for use; and means controlled by the movement of said compactible part to compact position for releasing said case shift lock, for rendering said center lock effective and for freeing the carriage from restraint of its escapement mechanism. 26. In a typewriting or like machine, the combination of a series of type bars movable into and out of contracted relationship, a carriage, escapement mechanism therefor,'a center lock for locking the carriage centered in its line of travel, a case shift frame, a case shift lock for locking said frame in its shifted position, a member for controlling the movements of the type bars into and out of' contracted relationship, and means controlled by said member for rendering the center lock effective and the case shift vlock ineffective.

27. In a typewriting or like machine, the combination of case shift mechanism, a compactible partof ihe Ymachine which when moved to compact position reduces the dimensions of the machine, and means controlled by the movement of said compactible part for locking the case shift mechanism against operation.

28. In a typewriting or like machine, the combination of a carriage, escapement mechanism therefor, a case shift frame, va case shift lQck for locking the case shift frame in its shifted position, a single hand controlled member, and means controlled b said member for rendering saidcase shi t lock ineffectiveand for freeing the carriage from restraint of its escapement mechanism.

29. In a typewriting or like machine, the combination of a series of t pe bars movable into and out of contracte relationship, a

carriage, escapement mechanism therefor, a center lock for locking the carriage centered in its line of travel, a case shift frame. a case shift lock for locking said frame in its shifted position, a member for controlling the movements of the type bars into and out of contracted relationship, and means controlled by a movement of said member in one direction to compact the type bars, free the carriage from restraint of its escapement mechanism, render the center lock effective and render the case shift lock ineffective, and by a movement of said member in the other` direction to expand the type bars, restore the carriage to the restraint of its escapement mechanism, render the centerlock ineffective, and render the case shift lock effective.

30. In a typewriting or like machine, the

combination of a carriage; feed mechanism therefor; a center lock for locking the carriage in centered position in its line of travel; case shift mechanism; a finger piece; and means controlled thereby for freeing the carriage from restraint of its feed mechanism, for rendering said center lock effective and for locking the case shift mechanism against actuation. l 31. In a typewriting or like machine, the combination of a case shift frame, a lock for locking the case shift frame in shifted position,1a second lock for preventing the case shift frame from bein shifted from its normal position by its shift'key or keys, a single hand actuated member, and means controlled thereby for rendering the first mentioned lock ineffective and the second lock effective.

32. In a typewriting or like machine, the combination of a, series of typebars movable into and out of contracted relationship, a carriage, escapement mechanism therefor, a center lock for locking the carriage centered in its line of travel, a, case shift frame, a case shift lock for locking said frame in its shifted position, case shift preventing means, a member fpr controlling the movements of the type bars into and out of contracted relationship, and means controlled by said member for controlling the release of the carriage from restraint of its escapement mechanism and for controlling said center lock, case shift lock and case shift preventing means.

33.'In a typewriting or like machine, the combination of a carriage; feed mechanism therefor including a feed dog releasable to free the carriage from restraint of its escapement mechanism, a collapsible part of the machine, and means controlled thereby for moving said dog to releasing position to free the carriage.

34. In a typewriting or-like machine, the combination of a case shift frame, a lock for locking the ca/se shift frame in shifted position, a second lock .for preventing the case shift frame froml being shifted from its normal position by its shift key or keys, a center lock for locking the carriage centered in its line of travel, a single hand actuated member, and means controlled thereby for rendering the first mentioned lock ineffective and the second lock effective and for rendering said center lock effective.

35. In a typewriting or like machine, the combination. of a carriage; escapement mechanism therefor; a center lock for locking the carriage centered in its line of travel; a part of the machine movble to and from compact position; a hand actuated member on the frame of the machine for controllin the movement of said part to contracte position, for freeing the carriage from restraint of its feed mechanism and rendering said center lock effective. l

36. In a typewriting or like machine, the combination of a case shift frame, a lock for locking the case shift frame in shifted position, asecond lock for preventing the case shift frame from being shifted from its normal position by its shift key or keys, separable members that enable the carriage to be freed from restraint of its escapement mechanism, a single hand actuated member,

and means controlled thereby for rendering said first mentioned lock ineffective and the second lock effective, and for separating said separable members to free the carriage from restraint of its escapement mechanism.

37. In a typeWriting or like machine, the combination of a carriage; escapement mechanism therefor; a center lock for locking the carriage centered in its line of travel; a part of the machine movable to and from compact position; a hand actuated member on the frame of the machine for controlling the movement of said part to contracted position, for freeing the carriage from restraint of its feed mechanism and for renderin said center lock effective by moving said and actuated member in one direction, and for moving said part from compaciposition, re-establishing the restraint of the carriage by its feed mechanism and rendering the center lock ineective by a movement of said member in the opposite direction.

38. In a typewriting or like machine, the combination of a case shift frame, a lock for locking the case shift frame in shifted position, a second lock for preventing the case shift frame from being shifted from its normal position by its shift key or keys; separable members that enable the carriage to beq freed'from restraint of its escapement mechanism, a center lock .for locking the carriage centered in lts line of travel, a

I' single hand actuated member, and means controlled thereby for rendering said first --iauentioned lock ineffective and the second 40. In a typewriting or. like machine, thecombination of a carriage; a carriage support; a center lock for locking the carriage centeredy in its line of travel comprising a locking projection on the carriage, and a cooperative locking member on the carriage support; a cam on the frame of the machine for shifting said co-operative locking member into the path of movement of said' locking projection on the carriage at any point -in the travel of the latter; a part of the machine movable `to and from compact position; and means controlled thereby for controlling the movement of said cam.

4l. In a typewriting or like machine, the combination of a carriage; a carriage support; a center lock for locking the carriage centered in its line of travel comprising a locking projection onthe carriage, and a co-operative locking member on the carriage support; and a cam on the frame ofthe machine for shifting said co-operative locking member into the path of movement of said locking projection onl the carriage at any point the travel of the latter.

42. In a typewriting or like machine, the combination of a carriage; a carriage support; a center lock for locking the carriage centered in its line of travel comprising a vspring supported locking projection on the carriage, and a co-operative locking member on the carriage support; a part of the machine movable to and from compact position; and means controlled by the movement of said part to and from compact position for controlling the movement of said co-operative locking member into and out ofthe path of said carriage carried locking projection.

43. In a typewriting or` like machine, the combination of a carriage; a carriage support mounted for case shifting movement; a center lock for locking the carriage centered in its line of travel comprising a locking projection on the carriage and a cooperative 'locking member on the carriage support and shiftabletherewith in its case. shifting movements; and a hand actuated controlling memberv on the 4frame of the machine which coacts'with said co-operative locking member to maintain it in the path of the locking projection on the carriage, and enable said co-operative locking member to be maintained out of the path of said projection when desired without interfering with the case shifting movements of the carriage support.

44. In a typewriting or like machine, the combination of a carriage, escapement mechanism for the carriage, a support therefor mounted for case shifting movement, a lock lfor locking the carriage centered in its line of travel and comprising a member carried by and shiftable with said support, a single hand actuated member mounted on the frame of the machine, and means located at different points in the width of the machine and controlled by said hand actuated member for simultaneously actuating the shiftable locking member to render said lock effective and for freeing the carriage from restraint of its escapement mechanism.

Signed at the borough of Manhattan, city of New York, in the county of New York and State of New York, this 17th day of February, A. D. 1923.

CHARLES E. SMITH. 

